Castelli - Fast Feet 4 Socks - Men's - White
There are lots of so-called aero socks out there. But the Castelli Fast Feet 4 Sock has the development and testing to back up the claim. The few socks that have been tested have probably been tested with a static, nonmoving test because it's easier. But a foot is always in motion, so they created a jig that replicates the movement of the lower leg. And they tested it on actual riders to verify the results. This sock can save 2 watts at 50 km/h. The newest version has an updated cuff fit for more comfort and aerodynamic gains.
The Brand:
Castelli has been passionate about the cycling world since the very beginning. They have had an innovative eye even way back in the 1900's. They have been a well known brand in the cycling world for so long that it would be practically impossible to not know their name. Everyday Castelli looks towards the future to freshen up their designs and be a leading company for all cycling events. You would have to be living under a rock to not know their name and to miss out on their top products.
Call us today at MyTriathlon on 0207 183 4116 or contact us via WebChat for friendly, expert advice and for answers to any sizing or specific product queries you may have.
- Brand Name:
- Castelli
- Gender:
- Mens
- Product Type:
- Socks
- sizing:
- Castelli-Socks
- Year:
- 2026
- Condition:
- new
- Discipline:
- Cycle
- Range:
- Fast
